Air-cooling system



Oct, 23, 1928.

1.. E. SMITLEY ET AL AIR COOLING SYSTEM Filed Oct 25, 1927 3 Sheets-Sheet l INVENTORS E .51

Leslie ran/6151M A TTORNE Y.

L. E. SMITLEY ET AL Oct. 23, 1928.

AIR COOLING SYSTEM Filed Oct. 25, 1927 INVENTORS LeslieE.SmiZZey y i7an/ziMoore,

' A TTORNE Y.

Oct, 23,1928.

L. E. SMITLEY ET AL AIR COOLING SYSTEM Filed Oct. 25, 1927 3 Sheets-Sheet 5 I N VEN TORS Patented Oct. 23, 1923.

LESLIE E. SMITLEY ann manx s. moon, or LOS am-coorma svsrnm.

ANGELES, camronma.

Application fiIedOctober 25, 1927. Serial No. 228,660..

, This invention relates to an air cooling system designed primarily'for use in connection with railway rolling stock, such as passenger,

parlor, sleeping, club, dining, express and other cars, but'it is to be understood that an air cooling system, .in accordance with this invention may be employed in connection with apartment,and oifice buildings, hotels and theatres, etc., and the invention has for its object to provide, in a manner as hereinafter set forth, an air cooling system includ ing electrically controlled means for intermittently supplying, when desired, cooled or chilled air to an enclosed space for theLpur-' pose of decreasing the temperature thereof.

Further objects of the invention are to provide, in a manner as hereinafter set forth. an

air cooling system. which is comparatively simple in its construction, strong, durable, compact, readily installed, thoroughly efiicient in its use, conveniently operated, and

comparatively inexpensive to set up.

tors.

' LWith the foregoing and otherv objects view the invention consists of the novel construction, combination-and arrangement of.

parts as hereinafter more specifically described, and illustrated in the accompanying drawings, wherein is shown an embodlment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claims hereunto appended.

'. In the drawings wherein like reference characters denote I corresponding parts 4 throughout the several views Figure 1 is a longitudinal sectional view of a passenger. car of the compartment type showing, the adaptation therewith'of an aircooling system in accordance with tl1is in' vention. a

Figure 2 is a diagrammatical view of the system when applied .to a plurality of compartments or enclosed spaces.

Figure 3 is a longitudinal sectional view illustrating-the cooler element.

Figure 4 is a fragmentary view, partly in section, illustrating one of the normally closed ventilators for the passage of the cooled or chilled air to the compartment or enclosed space. I F'gure 5 is a top plan view of the ventila- .The system is illustrated by way of ex .ample as installed with respect to a Pullman car of the compartment type and with the .air

supplied from the train pipe, but it is to-be understood that-when the system is installed that the source of air supply can be had from any desirable point, byway of example from an 2111' pump and with the feed pipe leading therefrom.- v x Referring to the drawings in detail 1 de-' notes a Pullman car provided with a series of compartments' as indicated at 2, 3, 4 and 5. .The train line or pipe is indicated at 7 and the air is taken therefrom and stored in a compressed air supplementary, reservoir 8 I which is arranged under the car -1 and communlca'tes with the line 7 by the connection 9 whlch opens into one end of the reservoir. Extending from the reservoir-8 to a cooler element 10 is a pipe connection 11 provided intermediate its ends with a triple valve or equalizing pressure hinged door 14, so that access can be had to I the interior of the receptacle 13 and the latter provides a cooling chamber 15. Arranged within the cooling chamber 15, at the lower portion thereof, is a pipe coil 16upon which 1s mounted a suitable refrigerant, such as a blockof ice as indicated at 17. The refrigerant is supplied to the chamber 15 through the outer side of said receptacle13 when the door'1'4 is swung toppen position. The pipe branch or connection 11 extends into one end of the receptacle 13, at the bottom tliereof,,as indicated at 17 and said end merges into the lower end of the, coil 16. Extending from the upper end of the coil 16 is an outlet pipe 18 for the cooled or chilled air and-said outlet pipe 18 extendsthrough that end of the receptacle 13- opposi'te the end through which passes the upper end 18 of the pipe connection 11. The outlet pipe 18 opens into acooled or chilled air conducting line 19 provided with branches corresponding in number to the number of the compartments and as illustrated the line 19 is formed with spaced branches 20, 21, 22, 23 which lead therefromand extend into the compartments 2, 3,4 and 5 respectively; The upper end of each of said branches terminates into a shallow receptacle 105 formed with a perforatedctop 25, a bottom L "26 formed with a. centrally disposed opening 27 having the wall thereof threaded, an interiorly threaded collar 28 having its inner face forming a continuation of the threads of the wallof the opening 27, and imperforate sidewalls 29. The top 25, bottom 26 andimperforate side Wallsare formed from a single casting. Each branch which leads from the line 19'has its upper end formed with peripheral threads engaging with the threads of the bottom 26 and collar 28 and in this connection see Figure 4. Each branch which leads from the line 19, is provided intermediate its ends with a controlling valve mechanism 30 and having the stem of its'valve indicated at 31. The ventilators formed by the receptacles '24 are positioned upon the bottoms of the several compartments. See Figure 1. WVhen the controlling valve mechanisms 30 are open,- the chilled or cooled air passes 1nto a recepflever arm 32, as at 33, is the upper end of the ,core 34 of a solenoid magnet 35. The connection' between the core and arm is insulated whereby the arm will be insulated from the core. The arm 32 is'spring controlled to pro- 'vide foritsswinging to normal position, K after it has been actuated from the solenoid magnet 35. The controlling spring for the arm 32 is indicated at 36, and'whlch 1s connected to a branch and to the lever'arm. The

' valve mechanism 30 is normally closed and it the sole'noid 1s energlzed, due

.is open when to the fact that the core 34 thereof will move downwardly, swinging the lever arm 32, n a direction to open the valve ofsaid mechanism, and after the solenoid 35 has become deenergized, the spring 36 will shift the arm 32 in a direction to close the Valve of the mechanism; The number of solenoid magnets will correspond to'the'number of controlling valve mechanisms.

With reference solenoid-magnets, corresponds to the number of compartments or enclosed spaces and the solenoid magnets in Figure 2 are 1nd1- cated at A, B, C and D. The circuit. for solenoid magnet A comprises conductor 37, conductor'38, branch conductor'39 leading from ,conductor 38 to solenoid A, conductor 40 extended from solenoid A to a switch 41, contact 42 at one terminus of conductor 37 and which associates with the switch 41 and conductor 43. Conductor 38 leads to the ground 44 and conductor 43 extends from ground 45. Thecircuit for solenoid magnet comto Figure 2, the number of prises a conductor 46, conductor 38, conduc tor 47 leading from conductor 38 to solenoid B, conductor 48 extending from solenoid B to a switch 49, contact 50 at one terminus of conductor 46 and which associates with switch 49 and conductor 43. The circuit connection for solenoid C comprises branch conductor 51 which leads from conductor 38 to solenoid C, conductor 52 which extends from solenoid C to switch 53, conductor 54, provided at one terminus with a contact 55 which associates with a switch 53 and. conductor 43. The circuit connection for solenoid D comprises conductor 38 which leads to solenoid magnet D, conductor 55' which extends 57 and 43 is an electric clock for controlling the time for opening and closing the valve mechanisms to the ventilatorsin the car floor and whereby the o'peningand closing of said ventilators can be had. with great accuracy. The clock is referred to generally at 60 and is so constructed that the dial 61 thereof makes one complete revolution per hour.

Surrounding and spaced from the dial 61 is a circular row of spaced contacts insulated from each other. The contacts are arranged insets and the number of sets corresponds to the number of solenoid magnets employed. The sets of contacts are carried by a support 62. As four solenoid magnets are illustrated:

as employed in connection with the system four sets of contacts are used and the contacts of one set are indicated at 63, the contacts of another set at 64 and" the contacts" of another set at 65 and the contacts of the remaining set at 66. The insulaikion arranged between the contacts is indi ated at 67. The arrangement of the contacts starting with contact 63 and following the direction of the arrow 67 which is arranged over a contact 63, is that a contact 64 is arranged in advance of such contact 63, acontact 65 is arranged in'advance of such contact 64, a, contact 66 is arranged in advance of such contact 65 and then follows a contact 63 in advance of contact 66. The contacts are successively engaged by a circuit opening and closing member 69 which wipes acontact and as long as member 69 is in engagement with the contact a circuit is closed and a controlthat the circuit is open and .the controlling spring'36 becomes activel The circuit to any one of the solenoid magnets is not open by a the wiping of the member 69 against a conably the area of the contacts will be such that it'will require five seconds in the opening and closing of each valve, mechanism. The circuit conductor 37 is connected to a contact 63 of one set and the other contacts 10 63 are electrically connected withv the conductor 37 by branches 70. The conductor 46 is electrically connected to a contact 64:

of a set and the other contacts 64 of the set are electrically connected-with the conduc tor 46 by the branches 71. The circuit conductor 54 is electrically connected to a contact 65 of a set and the remaining contacts 65 are electrically connected to the conductor 54.by branches 72, and the circuit con- .ductor 57 is electrically connected to a contact 66 of a set and the remaining contacts 66 of such set are electrically connected with the conductor 57 by the branches 73. The circuit conductor 43 is electrically connected with the circuit opening and closing member 69.

\Vhen the system is operated in the manner as referred to, the cooled or chilled air, under high pressure is forced through the ventilators for a predetermined period and with no valve mechanisms operating or opening at the same time.. The control is to be such that after a valve mechanism is closed it will remain so for a predetermined period, but if six ventilators are employed in each car, preferablyv the valve mechanisms will remain closed for a period of ten minutes.

The reservoir 8, cooler 10 and supply line 19 are suitablyfsupported from the floor of the car.

Although the system is illustrated as installed in connection with a Pullman car of the compartment type, yet it is to be understood that it can be installed in connection desired number of ventilators can be employed. Preferably in. connection with the and which will supplying cooled or chilled air for a predepassenger carsix ventilators will be employed be successively operated for termin'ed period to the interior of the car for decreasing the temperature thereof.

It is also to bederstood that the system buildings, apartment buildings, and theatres.

" As the air feed isu'nder pressure, when the ventilators are open, the cooled or chilled air under high pressure is forced through the ventilators thereby causing'the warm air to rapidly ascend in the enclosed space to which the cooled or chilled air is su plied, under pressure. Although a block 0 iceis illustrated as'a refrigerant for cooling the air when passing through the coil 16, yet it is to be understood that any suitable refrigerant can be employed in the chamber 15 for thepurpose ofcoolin'g or chilling the air travelling through the coil 16. Y

It is'thought the many advantages of an air cooling system, in accordance with this 7 invention, can be readily understood and although the preferred embodiment of the invention is as illustrated and described, yet it is to be understood that changes in the details of construction can be had which fall'w ithin' the scope of the invention as claimed.

What we claim is: 1

1. An aircooling system comprising a plu-. rality of ventilators each adapted for supply ing cooled air under pressure to reduce the temperature of an enclosed space, a cooled air supply line provided with branches each connected to ayen'tilator and with each branch having a normally closed spring controlled valve mechanism for closing thebranch to the ventilator with which it is associated means for cooling air under pressure, said means permanently communicating with said line, Y and time controlled electrically operated mechanisms for successively opening said valve mechanisms for a predetermined period to provide for the supplying of the cooled air under pressure to said ventilators for'dis charge into the enclosed spaces. a

2. An air cooling system comprising a plurality ofhollow ventilators each provided with apenforate top for supplying cooled air under pressure to an enclosed space, a cooled air supply line-having branches each connected to a ventilator and opening thereinto and with each branch provided with a nor- 'mally closed, springcontrolledwalve mechasuccessivel operating said valve mechanisms 'for a pre etermined period to successively supply cooled air to said ventilators for dis" chargeinto said enclosed spaces 3. Anair cooling system comprising a plurality of hollow ventilatorsfeach provided with a perforated top for supplying cooled air under pressure to an enclosed space, a. cooled. air supply line having branches each connected to, a, ventilator and opening thereinto and with each branch provided with a normally closed, spring controlled f valve. mechamsm for closing the branch to the. ventilator with which it is associated, arefrigeratingielement, means for subjecting air under pressure to and conducting it through said element wherebythe'temperature of the air will be materially reduced, means for 1 establishing permanent communication be tween said conducting means and said line, a

and a plurality of time controlled electrically operated mechanisms for successively operating said valve mechanisms for. a 'predeten- 1 mined period for successively supplying cooled air under pressure to said ventilators for discharge into said enclosed spaces.

4. An air cooling system comprising a plurality of hollow ventilators each provided with a perforated top for supplying cooled air under pressure to an enclosed-space, a cooled air supply line having branches each connected to a ventilator and opening thereinto and with each branch provided With a normally closed, spring controlled valve mechanism for closing the branch to the ventilator with which it is associated, a refrigerating element, means for subjecting air under pressure to and for conducting it through said element whereby the temperature of the air will be reduced, means for establishing permanent communication between sald conducting means and said line, a time controlled electrically operated mechanism for each valve mechanism for opening it for a prede-' termined period to supply cooled air to a ventilator for discharge into "one of said spaces, and means common to said electrically operated mechanisms for successively operating them to operate said valve mechanisms successively.

In testimony whereof, we affix our sigma tures hereto.

LESLIE E. SMITLEY. FRANK S. MOORE. I 

